Last week, we presented a poll on the Big Ten players facing the most pressure in 2014. But football, of course, is a team sport. So what about the league units that will be facing the most pressure this fall?

CHICAGO -- Illinois hopes Deion Sanders was right when he famously stated, "If you look good, you feel good. If you feel good, you play good."The Illini unveiled their new look this week, part of a rebrand with Nike for all the school's athletic teams.

We're taking snapshots of each position group with each Big Ten team entering the spring. Up next: the defensive lines.Illinois: This is a significant concern for the Illini, especially after the recent departure of Houston Bates, who started last season at the Leo (defensive end/outside linebacker) spot.

Greg Colby and Mike Bellamy both have seen better days at Illinois.During Colby's first stint as an assistant at his alma mater (1988-95), Illinois shared a Big Ten championship in 1990 and reached six bowl games in seven seasons.